Stihl HTE 60 Instruction Manual page 42

English
20.5 For Checking Angles
Use a STlHL filing gauge (special accessory, see
table "Sharpening Tools"). This is a universal tool
for checking the filing and side plate angles,
depth gauge setting, cutter length and groove
depth. It also cleans the guide bar groove and oil
inlet holes.
20.6 File Correctly
► Select sharpening tools according to chain
pitch.
► If you use an FG 2, HOS or USG sharpener:
Remove the chain from the bar and sharpen
according to the instructions supplied with the
tool.
► Clamp the bar in a vise if necessary.
► Sharpen the chain frequently, take away as lit‐
tle metal as possible – two or three strokes of
the file are usually enough.
► Hold the file horizontally (at a right angle to the
side of the guide bar) and file according to the
42
20 Maintaining and Sharpening the Saw Chain
angles marked on the file holder. Rest the file
holder on the top plate and depth gauge.
► Always file from the inside to the outside of the
cutter.
► The file only sharpens on the forward stroke –
lift the file off the cutter on the backstroke.
► Avoid touching the tie straps and drive links
with the file.
► Rotate the file at regular intervals while filing to
avoid one-sided wear.
► Use a piece of hardwood to remove burrs from
the cutting edge.
► Check angles with the filing gauge.
All cutters must be the same length.
If the cutters are not the same length, they will
have different heights. This makes the chain run
roughly and can cause it to break.
► Find the shortest cutter and then file all other
cutters back to the same length. It is best to
have this work done by a servicing dealer on
an electric grinder.
20.7
The depth gauge determines the height at which
the cutter enters the wood and thus the thickness
of the chip removed.
90°
a Specified distance or setting between depth
gauge and cutting edge.
This setting may be increased by 0.2 mm
(0.008") for cutting softwood in the mild weather
season – no frost.
Chain pitch
inch
1/4 P
20.8
The depth gauge setting is reduced when the
chain is sharpened.
► Use a filing gauge to check the setting every
time you sharpen the chain.
Depth Gauge Setting
Depth gauge
Setting (a)
(mm) mm
(6.35) 0.45
Lowering Depth Gauges
a
(inch)
(0.018)
0458-247-9921-C